Lubricants - ABB MT Serie Manual De Instalación, Funcionamiento, Mantenimiento Y Seguridad

6.2.4 Lubricants

WARNING
Do not mix different types of grease.
Incompatible lubricants may cause bearing damage.
When regreasing, use only special ball bearing grease with
the following properties:
– good quality grease with lithium complex soap and with
mineral- or PAO-oil
– base oil viscosity 100-160 cST at 40°C
– consistency NLGI grade 1.5 - 3 *)
– temperature range -30°C - +120°C, continuously.
*) For vertical mounted motors or in hot conditions a stiffer
end of scale is recommended.
The above mentioned grease specification is valid if the
ambient temperature is above -30°C or below +55°C, and
the bearing temperature is below 110°C; otherwise consult
ABB regarding suitable grease.
Grease with the correct properties is available from all the
major lubricant manufacturers.
Admixtures are recommended, but a written guarantee
must be obtained from the lubricant manufacturer,
especially concerning EP admixtures, that admixtures do
not damage bearings or the properties of lubricants at the
operating temperature range.
WARNING
Lubricants containing EP admixtures are not
recommended in high bearing temperatures in frame
sizes 280 to 450.
The following high performance greases can be used:
- Esso Unirex N2 or N3 (lithium complex base)
- Mobil Mobilith SHC 100 (lithium complex base)
- Shell Gadus S5 V 100 2 (lithium complex base)
- Klüber Klüberplex BEM 41-132 (special lithium
base)
- FAG Arcanol TEMP110 (lithium complex base)
- Lubcon Turmogrease L 802 EP PLUS
(special lithium base)
- Total Multiplex S 2 A (lithium complex base)
NOTE!
Always use high speed grease for high speed 2-pole
machines where the speed factor is higher than
480,000 (calculated as Dm x n where Dm = average
bearing diameter, mm; n = rotational speed, r/min).
The high speed grease is also used in motor types
M2CA, M2FA, M2CG and M2FG, frame sizes 355 to
400 2-pole machines.
The following greases can be used for high speed cast iron
motors but not mixed with lithium complex greases:
- Klüber Klüber Quiet BQH 72-102 (polyurea base)
- Lubcon Turmogrease PU703 (polyurea base)
If other lubricants are used;
Check with the manufacturer that the qualities correspond
to those of the above mentioned lubricants. The lubrication
interval are based on the listed high performance greases
above. Using other greases can reduce the interval.
If the compatibility of the lubricant is uncertain, contact
ABB.
Low voltage motor manual 01-2009 | ABB Motors and Generators EN-17